Yes! Serenades totally work especially if they aren't done so frequently at your school and you make sure to work in the sorority name into the lyrics. You really don't have to be good just dress up and be sincere. It also helps if you have a brother that plays a little guitar to help the singing impaired. There are lots of examples on youtube if you search for fraternity serenade for ideas. I think one like this one is very charming - - - - >
http://www.youtube.com/watch?v=dKbw_...eature=related